How to establish a GPRS attach with SARA-R412M-02B

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I tried to establish a GPRS attach with a SARA-R412M (because neither Cat.NB1 nor Cat.M1 are available at our site until now!).
The SARA-R412M registers into the 2G Network, but it does not perform an GPRS attach!!!??? --> refer to Content of log file below

Are there any requirements concerning the SIM when using the SARA-R412M? I tested with several SIMs. With all these SIMs the GPRS data transmission works perfectly with our SARA-G350 and SARA-U270 !!!???

Best regards
Thomas Döß

Content of log file:

ate0

OK

ati

Manufacturer: u-blox

Model: SARA-R412M-02B        //mounted on an u-blox “EVB-WL3”

Revision: M0.04.01 [May 31 2018 13:03:11]

SVN: 02

IMEI: 354679090033724

OK

at+cops=2     //deregister from network

OK

at+creg=2     //enable network registration and location information URC

OK

at+cgreg=2    //enable GPRS network registration and location information URC

OK

at+cereg=3    //enable EPS network registration, location and EMM cause value information URC

OK

at+urat=9     //RAT=GPRS/eGPRS (Because neither NB1 nor M1 are available at our site!)

OK

at+umnoprof=0  //MNO profile=SW default

OK

at+cgdcont?   //check APNs

+CGDCONT: 1,"IP","","0.0.0.0",0,0,0,0

+CGDCONT: 2,"IP","","0.0.0.0",0,0,0,0

+CGDCONT: 3,"IP","","0.0.0.0",0,0,0,0

+CGDCONT: 4,"IP","","0.0.0.0",0,0,0,0

+CGDCONT: 5,"IP","","0.0.0.0",0,0,0,0

OK

at+cops=?     //check available networks

+cops: (0,"262 03","262 03","26203",0),(0,"262 02","262 02","26202",0),(0,"Telekom.de","Telekom.","26201",0),,(0,1,2,3,4),(0,1,2)

OK     //status of Telekom network is “unknown”!!!???

//I tested with several SIMs.
//With all these SIMs the GPRS data transmission works perfectly in SARA-G and SARA-U!!!???

      

at+cops=1,2,"26201"   //manual attach to Telekom network

OK

//Waiting for more than 3 minutes (refer to “Response time”, given in SARA-R4/N4 series AT Commands //Manual (UBX-17003787 - R11), chapter 7.4 Operator selection +COPS

//Not any URC appears!!!???

at+creg?

+CREG: 2,1,"106F","D2AF",B   //registered to home network

OK

at+cgreg?

+CGREG: 2,2   //not registered to GPRS network, but MT is currently searching a new operator to register to

OK

at+cereg?

+CEREG: 3,4   //EPS network registration status unknown (e.g. out of E-UTRAN coverage)

OK

at+cops?

+COPS: 1      //SARA-R412M does not show the operator Name !!!???

OK

at+cgdcont?

+CGDCONT: 1,"IP","","0.0.0.0",0,0,0,0

+CGDCONT: 2,"IP","","0.0.0.0",0,0,0,0

+CGDCONT: 3,"IP","","0.0.0.0",0,0,0,0

+CGDCONT: 4,"IP","","0.0.0.0",0,0,0,0

+CGDCONT: 5,"IP","","0.0.0.0",0,0,0,0

OK

at+cgatt?

+CGATT: 0

OK

at+cgatt=1

+CME ERROR: no network service

//I tested with several SIMs.
//With all these SIMs the GPRS data transmission works perfectly in SARA-G and SARA-U!!!???  
  

at&v

ACTIVE PROFILE: &C: 1; &D: 1; &F: 0; Q: 0; V: 1; X: 1; Z: 0; &S: 1;

&W: 0; \Q: 3; E: 0; L: 0; M: 0; &K: 3; &Y: 0; O: 0; S0: 0; S4: 10; S5: 8;

S6: 2; S7: 0; S8: 2; S10: 14; S3: 13; S2: 43; S12: 50; +ICF: 3,1;

+IFC: 0,0; +IPR: 115200; +CMEE: 2; +WS46: 12; +CFUN:; +UAUTHREQ: 1,0,"";

+CEREG: 3; +CEMODE: 2; +CSCS: "IRA"; +CRC: 0; +CGDCONT: (1,"IP","","0.0.0.0",0,0,0,0),(2,"IP","","0.0.0.0",0,0,0,0),(3,"IP","","0.0.0.0",0,0,0,0),(4,"IP","","0.0.0.0",0,0,0,0),(5,"IP","","0.0.0.0",0,0,0,0)

; +CGDSCONT: ; +CGEREP: 0,0; +CGSMS: 1; +CSMS: 0; +CMGF: 0; +CSAS: 0;

+CRES: 0; +CSCA: "",; +CSMP: ,,0,0; +CREG: 2; +CGREG: 2;

+CGPIAF: 0,0,0,0; +CSDH: 0; +CPIN: ÿÿÿÿÿÿÿÿ,ÿÿÿÿÿÿÿÿ; +CMER: 0,0,0,0,0;

+CPMS: "ME","ME","ME"; +CNMI: 0,0,0,0,0; +CMMS: 0; +COPS: 1,2,"";

+CGATT: 0; +CGACT(1,0),(2,0),(3,0),(4,0),(5,0); +CPOL: 0,2,"",0,0,0,0;

+CPLS: 0; +CTZR: 0; +CTZU: 0; +CSDF: 1; +CUSD: 0;

+CIND: 5,5,0,0,0,0,1,0,0,0,0,0; +CPSMS: 0,"","","",""; +CEDRXS: 0,1,"";

+URAT: 13,4294967295; +UMNOPROF: 3; +UPSV: 0,0

OK     //Wrong values are shown after AT&V!!!???

at+urat?

+URAT: 9

OK

at+umnoprof?

+UMNOPROF: 0

OK

by Doess asked Nov 8
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